EP0803622A2 - GFP-mast - Google Patents

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Publication number
EP0803622A2
EP0803622A2 EP97105727A EP97105727A EP0803622A2 EP 0803622 A2 EP0803622 A2 EP 0803622A2 EP 97105727 A EP97105727 A EP 97105727A EP 97105727 A EP97105727 A EP 97105727A EP 0803622 A2 EP0803622 A2 EP 0803622A2
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EP
European Patent Office
Prior art keywords
grp
horizontal composite
composite panels
pipes
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97105727A
Other languages
German (de)
French (fr)
Other versions
EP0803622A3 (en
EP0803622B1 (en
Inventor
Helmut Lieb
Markus Rödle
Georg Simson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfleiderer Infrastrukturtechnick GmbH and Co KG
Original Assignee
Pfleiderer Infrastrukturtechnick GmbH and Co KG
Pfleiderer Verkehrstechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfleiderer Infrastrukturtechnick GmbH and Co KG, Pfleiderer Verkehrstechnik GmbH and Co KG filed Critical Pfleiderer Infrastrukturtechnick GmbH and Co KG
Publication of EP0803622A2 publication Critical patent/EP0803622A2/en
Publication of EP0803622A3 publication Critical patent/EP0803622A3/en
Application granted granted Critical
Publication of EP0803622B1 publication Critical patent/EP0803622B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/50—Flanged connections
    • F16B2200/506—Flanged connections bolted or riveted

Definitions

  • the invention relates to a GRP mast (glass fiber reinforced plastic mast) in the form of a plurality of spaced, mutually braced GRP pipes.
  • braced GRP pipes are cheaper to manufacture and have a smaller area exposed to the wind, which again makes it possible to reduce costs by making them leaner and using thinner pipes.
  • masts made of braced GRP pipes are relatively susceptible to twisting and the deflection in antennas has not yet been satisfactorily resolved.
  • the invention is therefore based on the object of designing a GRP mast of the type mentioned at the outset in such a way that it has both strength and deflection and improved strength properties with as constant or simplified production as possible.
  • the invention provides that the tubes, preferably three tubes spanning an equilateral prism, are connected to one another by horizontally spaced horizontal composite panels.
  • the horizontal composite panels which can consist of metal or fiber-reinforced plastic, should preferably consist of weather-resistant glulam, that is to say multi-glued wooden panels, which can preferably also have an additional plastic coating on the outside.
  • Such glued laminated timber which is additionally sealed by a plastic covering, can be manufactured to be extremely weather-resistant and gives excellent strength values with low weight, the elasticity inherent in such a wood panel for the mast structure bringing additional favorable results.
  • the pipes are to consist of individual pipe sections, the lengths of which preferably correspond to the vertical spacing of adjacent horizontal composite panels, the pipe sections being provided at their ends with flanges which are connected to anchoring pipes, preferably made of metal, which engage in the plastic pipe sections.
  • the flanges enable the pipe sections to be simply screwed to one another, the screwing preferably taking place with the horizontal composite plates in each case being arranged, so that no separate operation is necessary for this fastening of the horizontal composite plates.
  • the connecting bolts of the flanges are to penetrate in the horizontal composite panels in a further embodiment of the invention, the length of which is slightly less than the thickness of the horizontal composite panels. In this way, the risk of the flanges cutting into the wood or plastic surface is avoided by the bending stress and the resulting tilting of adjacent pipe sections.
  • the standing sleeves could of course be omitted.
  • the horizontal composite panels are rounded triangles with bent side edges in the corners.
  • the GRP mast shown consists of three GRP pipes 1, each made up of individual pipe sections 1 ', 1' 'and 1' '', each of which corresponds to the distance between two superimposed horizontal composite panels 2 connecting the three pipes 1 to one another.
  • the three GRP tubes 1 form the corner edges of an equilateral prism, three or preferably, as shown, four horizontal composite panels being sufficient to brace such a mast with a total height of 16 m. Seen from the ground, these are arranged at a height of 3 m, 6 m, 9 m and 14 m. With an outer diameter of the GRP pipes 1 of approximately 170 mm, the distances of the pipes from one another are approximately 1.5 m in the exemplary embodiment shown.
  • the individual sections 1 ′, 1 ′′ and 1 ′′ ′′ of the pipes consist of a plastic pipe, into each of which a metal pipe 3, preferably made of a stainless steel pipe, is glued at the end, to which a metal flange 4 is welded.
  • the metal flanges 4 are interconnected by screws 5, each with a horizontal composite plate 2, the screws penetrating standing sleeves 6, the length of which is slightly less than the thickness of the plates 2.
  • the horizontal composite plates exist made of weather-resistant glulam that is glued several times and has a plastic coating.
  • the metal anchoring pipes 3, which could also be made of galvanized steel instead of stainless steel, are connected to the plastic pipes 1 'via an adhesive joint by means of special adhesives.
  • the invention is not restricted to the exemplary embodiment shown.
  • less than three or even more than four horizontal composite panels could also be used at the same height of 16 m, the 16 m height given, of course, being only one exemplary embodiment.
  • all common GRP mast heights can be implemented in the construction according to the invention.
  • the horizontal composite panels alone are sufficient, it would be appropriate in special cases and at very high heights to connect the tubes 1 between the horizontal composite panels by diagonal struts made of GRP tubes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Supports For Pipes And Cables (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The mast includes a number of relatively spaced reinforced glass fibre plastics tubes (1). The tubes, preferably three, are arranged in an equi-lateral prism configuration and joined together at vertically spaced points via horizontal plates (2). Preferably, the plates are made of metal, fibre reinforced plastics, or a weather resistant wood products. Each of the tubes are formed from tubular sections (1',1'',1''') which are joined together via the horizontal plates.

Description

Die Erfindung bezieht sich auf einen GFK-Mast (glasfaserverstärkter Kunststoffmast) in Form mehrerer beabstandeter, gegeneinander verstrebter GFK-Rohre.The invention relates to a GRP mast (glass fiber reinforced plastic mast) in the form of a plurality of spaced, mutually braced GRP pipes.

Neben den häufig im Schleuderverfahren gefertigten konischen Mastkonstruktionen sind in jüngster Zeit, beispielsweise als Antennenmasten, auch bereits Konstruktionen ähnlich wie die bekannten Metallgittermaste bekanntgeworden, bei denen vier GFK-Rohre, die die Kanten eines geraden Prismas bilden, durch Verstrebungen miteinander verbunden sind. Derartige verstrebte GFK-Rohre sind billiger in der Fertigung und weisen eine geringere Windangriffsfläche auf, was es nochmals ermöglicht, die Kosten zu reduzieren, indem sie schlanker und aus dünneren Rohren aufgebaut werden. Unabhängig von der Art der Verstrebung sind derartige Maste aus verstrebten GFK-Rohren aber relativ anfällig gegen Verdrehung und auch die Auslenkung in Antennen ist bislang noch nicht zufriedenstellend gelöst.In addition to the conical mast constructions that are often manufactured using the centrifugal process, structures similar to the known metal lattice masts have recently become known, for example as antenna masts, in which four GRP pipes, which form the edges of a straight prism, are connected to one another by struts. Such braced GRP pipes are cheaper to manufacture and have a smaller area exposed to the wind, which again makes it possible to reduce costs by making them leaner and using thinner pipes. Regardless of the type of bracing, such masts made of braced GRP pipes are relatively susceptible to twisting and the deflection in antennas has not yet been satisfactorily resolved.

Der Erfindung liegt daher die Aufgabe zugrunde, einen GFK-Mast der eingangs genannten Art so auszugestalten, daß er sowohl was die Auslenkung als auch die Verdrehung anlangt, verbesserte Festigkeitseigenschaften bei möglichst gleichbleibender oder vereinfachter Fertigung aufweist.The invention is therefore based on the object of designing a GRP mast of the type mentioned at the outset in such a way that it has both strength and deflection and improved strength properties with as constant or simplified production as possible.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß die Rohre, vorzugsweise drei, ein gleichseitiges Prisma aufspannende Rohre, durch in der Höhe beabstandete Horizontalverbundplatten miteinander verbunden sind.To achieve this object, the invention provides that the tubes, preferably three tubes spanning an equilateral prism, are connected to one another by horizontally spaced horizontal composite panels.

Überraschenderweise hat es sich gezeigt, daß durch drei oder vier solcher Horizontalverbundplatten, bezogen auf einen GFK-Mast von 16 m Höhe, sowohl eine geringere Auslenkung als auch eine geringere Verdrehung in Antennenhöhe ergeben als vielfach verstrebte Vierrohrmaste, wobei durch den Wegfall eines Rohres bei der bevorzugten erfindungsgemäßen Dreiecksprismenkonstruktion der Aufbau noch zusätzlich stark vereinfacht wird.Surprisingly, it has been shown that three or four such horizontal composite panels, based on a GRP mast of 16 m in height, result in both less deflection and less twisting at antenna height than four-pole masts, which are often strived for preferred triangular prism construction according to the invention the structure is additionally greatly simplified.

Die Horizontalverbundplatten, die aus Metall oder faserverstärktem Kunststoff bestehen können, sollen in Ausgestaltung der Erfindung bevorzugt aus witterungsbeständigem Brettschichtholz, also mehrfach verleimten Holzplatten, bestehen, die vorzugsweise außen auch noch eine zusätzliche Kunststoffbeschichtung aufweisen können.The horizontal composite panels, which can consist of metal or fiber-reinforced plastic, should preferably consist of weather-resistant glulam, that is to say multi-glued wooden panels, which can preferably also have an additional plastic coating on the outside.

Ein derartiges noch dazu durch eine Kunststoffumhüllung versiegeltes Brettschichtholz läßt sich äußerst witterungsbeständig fertigen und gibt bei geringem Gewicht hervorragende Festigkeitswerte, wobei die einer solchen Holzplatte immanente Elastizität für den Mastaufbau zusätzliche günstige Ergebnisse mit sich bringt.Such glued laminated timber, which is additionally sealed by a plastic covering, can be manufactured to be extremely weather-resistant and gives excellent strength values with low weight, the elasticity inherent in such a wood panel for the mast structure bringing additional favorable results.

In weiterer Ausgestaltung der Erfindung sollen die Rohre aus einzelnen Rohrabschnitten bestehen, deren Längen bevorzugt dem vertikalen Abstand benachbarter Horizontalverbundplatten entsprechen, wobei die Rohrabschnitte endseits mit Flanschen versehen sind, die mit in die Kunststoffrohrabschnitte eingreifend befestigten Verankerungsrohren, vorzugsweise aus Metall, verbunden sind.In a further embodiment of the invention, the pipes are to consist of individual pipe sections, the lengths of which preferably correspond to the vertical spacing of adjacent horizontal composite panels, the pipe sections being provided at their ends with flanges which are connected to anchoring pipes, preferably made of metal, which engage in the plastic pipe sections.

Die Flansche ermöglichen ein einfaches Verschrauben der Rohrabschnitte miteinander, wobei das Verschrauben bevorzugt unter Zwischenordnung jeweils der Horizontalverbundplatten erfolgt, so daß für diese Befestigung der Horizontalverbundplatten kein gesonderter Arbeitsgang notwendig ist. Bei Ausbildung der Horizontalverbundplatten aus faserverstärktem Kunststoff oder aus dem bevorzugten witterungsbeständigen Brettschichtholz sollen dabei in weiterer Ausgestaltung der Erfindung die Verbindungsbolzen der Flansche Stehhülsen in den Horizontalverbundplatten durchsetzen, deren Länge etwas kleiner ist als die Dicke der Horizontalverbundplatten. Auf diese Art und Weise wird durch die Biegebeanspruchung und die daraus resultierende Verkantung benachbarter Rohrabschnitte die Gefahr eines Einschneidens der Flansche in die Holz- oder Kunststoffoberfläche vermieden. Bei der - in der Praxis allerdings aus anderen Gründen nicht so günstigen - Verwendung von Horizontalverbundplatten aus Metall könnten selbstverständlich die Stehhülsen entfallen.The flanges enable the pipe sections to be simply screwed to one another, the screwing preferably taking place with the horizontal composite plates in each case being arranged, so that no separate operation is necessary for this fastening of the horizontal composite plates. When the horizontal composite panels are made from fiber-reinforced plastic or from the preferred weather-resistant glulam, the connecting bolts of the flanges are to penetrate in the horizontal composite panels in a further embodiment of the invention, the length of which is slightly less than the thickness of the horizontal composite panels. In this way, the risk of the flanges cutting into the wood or plastic surface is avoided by the bending stress and the resulting tilting of adjacent pipe sections. With the use of horizontal composite panels made of metal - which in practice is not so cheap for other reasons - the standing sleeves could of course be omitted.

Schließlich liegt es auch noch im Rahmen der Erfindung, daß die Horizontalverbundplatten in den Ecken gerundete Dreiecke mit eingebogenen Seitenkanten sind.Finally, it is also within the scope of the invention that the horizontal composite panels are rounded triangles with bent side edges in the corners.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels sowie anhand der Zeichnung. Dabei zeigen:

Fig. 1
eine perspektivische Ansicht eines erfindungsgemäßen GFK-Masts, und
Fig. 2
einen vergrößerten Schnitt durch ein GFK-Rohr im Bereich der Stoßkante zweier Rohrabschnitte und der dort befestigen Horizontalverbundplatte.
Further advantages, features and details of the invention result from the following description of an exemplary embodiment and from the drawing. Show:
Fig. 1
a perspective view of a GRP mast according to the invention, and
Fig. 2
an enlarged section through a GRP pipe in the area of the abutting edge of two pipe sections and the horizontal composite plate fastened there.

Der dargestellte GFK-Mast besteht aus drei GFK-Rohren 1, die jeweils aus einzelnen Rohrabschnitten 1', 1'' und 1''' aufgebaut sind, die jeweils dem Abstand zweier übereinanderliegender, die drei Rohre 1 miteinander verbindender Horizontalverbundplatten 2 entsprechen. Die drei GFK-Rohre 1 bilden dabei die Eckkanten eines gleichseitigen Prismas, wobei zur Verstrebung eines derartigen Mastes mit einer Gesamthöhe von 16 m drei oder vorzugsweise, wie dargestellt, vier Horizontalverbundplatten ausreichen. Diese sind vom Boden her gesehen in 3 m, 6 m, 9 m und 14 m Höhe angeordnet. Bei einem Außendurchmesser der GFK-Rohre 1 von ca. 170 mm betragen im dargestellten Ausführungsbeispiel die Abstände der Rohre voneinander etwa 1,5 m.The GRP mast shown consists of three GRP pipes 1, each made up of individual pipe sections 1 ', 1' 'and 1' '', each of which corresponds to the distance between two superimposed horizontal composite panels 2 connecting the three pipes 1 to one another. The three GRP tubes 1 form the corner edges of an equilateral prism, three or preferably, as shown, four horizontal composite panels being sufficient to brace such a mast with a total height of 16 m. Seen from the ground, these are arranged at a height of 3 m, 6 m, 9 m and 14 m. With an outer diameter of the GRP pipes 1 of approximately 170 mm, the distances of the pipes from one another are approximately 1.5 m in the exemplary embodiment shown.

Die einzelnen Abschnitte 1', 1'' und 1''' der Rohre bestehen aus einem Kunststoffrohr, in das jeweils endseitig ein vorzugsweise als Edelstahlrohr ausgebildetes Metallrohr 3 eingeklebt ist, an dem jeweils ein Metallflansch 4 angeschweißt ist. Die Metallflansche 4 sind unter Zwischenordnung jeweils einer Horizontalverbundplatte 2 durch Schrauben 5 miteinander verbunden, wobei die Schrauben Stehhülsen 6 durchsetzen, deren Länge geringfügig kleiner ist als die Dicke der Platten 2. Im dargestellten Ausführungsbeispiel bestehen die Horizontalverbundplatten aus witterungsbeständigem Brettschichtholz, das mehrfach verleimt und mit einer Kunststoffbeschichtung versehen ist. Die Metall-Verankerungsrohre 3, die anstelle aus Edelstahl auch aus verzinktem Stahl bestehen könnten, sind über eine Klebefuge durch Spezialkleber mit den Kunststoffrohren 1' verbunden.The individual sections 1 ′, 1 ″ and 1 ″ ″ of the pipes consist of a plastic pipe, into each of which a metal pipe 3, preferably made of a stainless steel pipe, is glued at the end, to which a metal flange 4 is welded. The metal flanges 4 are interconnected by screws 5, each with a horizontal composite plate 2, the screws penetrating standing sleeves 6, the length of which is slightly less than the thickness of the plates 2. In the exemplary embodiment shown, the horizontal composite plates exist made of weather-resistant glulam that is glued several times and has a plastic coating. The metal anchoring pipes 3, which could also be made of galvanized steel instead of stainless steel, are connected to the plastic pipes 1 'via an adhesive joint by means of special adhesives.

Wie man aus Fig. 1 erkennen kann, sind die Horizontalverbundpaltten Dreiecksplatten mit gerundeten Ecken 7, deren Seitenkanten 8 eingebogen sind. Dadurch ergibt sich eine Materialeinsparung und damit ein geringeres Gewicht der Horizontalverbundplatten.As can be seen from Fig. 1, the horizontal composite triangular plates with rounded corners 7, the side edges 8 are bent. This results in a material saving and thus a lower weight of the horizontal composite panels.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. So wäre es grundsätzlich auch möglich, einen Vierrohrmast mit Hilfe der erfindungsgemäßen Horizontalverbundplatten aufzubauen, obgleich die Stabilität und insbesondere die Verdrehfestigkeit gerade der Dreirohrausführung besonders günstig ist. Darüber hinaus könnten - wie bereits ausgeführt - auch bei der gleichen genannten Höhe von 16 m weniger als drei oder auch mehr als vier Horizontalverbundplatten verwendet werden, wobei selbstverständlich die angegebene 16 m-Höhe lediglich ein Ausführungsbeispiel darstellt. Prinzipiell lassen sich alle gängigen GFK-Masthöhen in der erfindungsgemäßen Konstruktion ausführen. Darüber hinaus wäre es selbstverständlich auch denkbar, die Rohre 1 nicht aus einzelnen Abschnitten, die über Flansche miteinander verschraubt werden, aufzubauen, sondern einstückig zu fertigen, was dann aber eine andere Art der Verankerung der Horizontalverbundplatten erforderlich machen würde. Schließlich wäre es - obgleich im allgemeinen die Horizontalverbundplatten alleine ausreichen - in Spezialfällen und bei sehr großen Höhen zweckmäßig, die Rohre 1 zwischen den Horizontalverbundplatten durch diagonale Verstrebungen aus GFK-Rohren miteinander zu verbinden.The invention is not restricted to the exemplary embodiment shown. In principle, it would also be possible to build a four-pipe mast with the help of the horizontal composite panels according to the invention, although the stability and in particular the torsional strength of the three-pipe version are particularly favorable. In addition - as already stated - less than three or even more than four horizontal composite panels could also be used at the same height of 16 m, the 16 m height given, of course, being only one exemplary embodiment. In principle, all common GRP mast heights can be implemented in the construction according to the invention. In addition, it would of course also be conceivable not to construct the tubes 1 from individual sections which are screwed together via flanges, but to manufacture them in one piece, which would then require a different type of anchoring of the horizontal composite panels. Finally, although in general the horizontal composite panels alone are sufficient, it would be appropriate in special cases and at very high heights to connect the tubes 1 between the horizontal composite panels by diagonal struts made of GRP tubes.

Claims (7)

GFK-Mast in Form mehrerer beabstandeter, gegeneinander verstrebter GFK-Rohre, dadurch gekennzeichnet, daß die Rohre (1), vorzugsweise drei, ein gleichseitiges Prisma aufspannende Rohre, durch in der Höhe beabstandete Horizontalverbundplatten (2) miteinander verbunden sind.GRP mast in the form of a plurality of spaced-apart, mutually braced GRP pipes, characterized in that the pipes (1), preferably three pipes spanning an equilateral prism, are connected to one another by horizontally spaced horizontal composite plates (2). GFK-Mast nach Anspruch 1, dadurch gekennzeichnet, daß die Horizontalverbundplatten (2) aus Metall, faserverstärktem Kunststoff oder bevorzugt aus witterungsbeständigem Brettschichtholz bestehen.GRP mast according to claim 1, characterized in that the horizontal composite panels (2) consist of metal, fiber-reinforced plastic or preferably of weather-resistant glulam. GFK-Mast nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rohre (1) aus einzelnen Rohrabschnitten (1', 1'', 1''') bestehen, die endseits mit Flanschen (4) versehen sind, die mit in die Kunststoffrohrabschnitte (1', 1'', 1''') eingreifend befestigten Verankerungsrohren (3), vorzugsweise aus Metall, verbunden sind.GRP mast according to claim 1 or 2, characterized in that the tubes (1) consist of individual tube sections (1 ', 1' ', 1' '') which are provided at the ends with flanges (4) which are incorporated in the Plastic pipe sections (1 ', 1' ', 1' '') engagingly attached anchoring pipes (3), preferably made of metal, are connected. GFK-Mast nach Anspruch 3, dadurch gekennzeichnet, daß die Rohrabschnitte (1', 1'', 1''') unter Zwischenordnung der Horizontalverbundplatten (2) miteinander verschraubt sind.GRP mast according to claim 3, characterized in that the pipe sections (1 ', 1' ', 1' '') are screwed together with the horizontal composite panels (2) interposed. GFK-Mast nach Anspruch 4, dadurch gekennzeichnet, daß die Verbindungsschrauben (5) der Flansche (4) Stehhülsen (6) in den Horizontalverbundplatten (2) durchsetzen.GRP mast according to claim 4, characterized in that the connecting screws (5) of the flanges (4) pass through standing sleeves (6) in the horizontal composite panels (2). GFK-Mast nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Horizontalverbundplatten in den Ecken (7) gerundete Dreiecke mit eingebogenen Seitenkanten (8) sind.GRP mast according to one of claims 1 to 5, characterized in that the horizontal composite panels in the corners (7) are rounded triangles with bent-in side edges (8). GFK-Mast nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Rohre (1) zwischen den Horizontalverbundplatten (2) diagonale Verstrebungen aus GFK-Rohren aufweisen.GRP mast according to one of claims 1 to 6, characterized in that the tubes (1) between the horizontal composite panels (2) have diagonal struts made of GRP tubes.
EP97105727A 1996-04-23 1997-04-07 GFP-mast Expired - Lifetime EP0803622B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616144 1996-04-23
DE19616144A DE19616144C2 (en) 1996-04-23 1996-04-23 GRP mast

Publications (3)

Publication Number Publication Date
EP0803622A2 true EP0803622A2 (en) 1997-10-29
EP0803622A3 EP0803622A3 (en) 1998-05-20
EP0803622B1 EP0803622B1 (en) 2002-09-04

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EP97105727A Expired - Lifetime EP0803622B1 (en) 1996-04-23 1997-04-07 GFP-mast

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US (1) US5894703A (en)
EP (1) EP0803622B1 (en)
BR (1) BR9701905A (en)
DE (1) DE19616144C2 (en)
ES (1) ES2178727T3 (en)
PT (1) PT803622E (en)
TW (1) TW349145B (en)

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DE9215057U1 (en) * 1992-11-05 1993-05-27 Frank, Egon, 8729 Theres Fiber-reinforced plastic lattice mast, which can be assembled and disassembled as a modular system with fiber-reinforced clamping elements (thus representing a lattice component)
DE9407220U1 (en) * 1994-04-26 1994-07-07 Betonwerk Rethwisch GmbH, 17219 Möllenhagen Tower made of centrifugal concrete pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014191935A1 (en) * 2013-05-29 2014-12-04 Jerol Industri Ab A pole structure

Also Published As

Publication number Publication date
DE19616144C2 (en) 1999-12-09
DE19616144A1 (en) 1997-11-06
EP0803622A3 (en) 1998-05-20
ES2178727T3 (en) 2003-01-01
EP0803622B1 (en) 2002-09-04
US5894703A (en) 1999-04-20
BR9701905A (en) 1999-01-12
PT803622E (en) 2003-01-31
TW349145B (en) 1999-01-01

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